I don't understand they they were able to take a photo on the capacitor array with no markings and infer that it's that exact Lithium battery? Just by looking at the blue cylindrical case?
Have I missed the other evidence?
Good questions. I didn't really spell it all out in one place before.
The main reasons I am fairly confident they are LTOs are:
1. I have read extensively about the current state of the art in supercapacitors, and we're nowhere-near this energy density, even in the lab, let alone mass production. And the chance that some lone genius could leapfrog everyone else by about 10 years is negligible.
2. LTO cells are commercially available that look
exactly like the "capacitors" in the Kilowatt Labs unit and they have
exactly* the required voltage, internal resistance, energy capacity, weight, dimensions, linear region of voltage vs charge curve, and (as we've seen most recently) flammable electrolyte. * Within 5%. [Edit: And low enough cost]
4 days ago I challenged Arvio to release a 1C voltage versus charge curve for a single cell, that goes outside of the linear region for LTOs. We're still waiting.
At this stage, I'm assuming good faith on their part.